Carson Beck Ruled Out vs. Raiders With Rib Injury, Scrapping Cardinals Rookie’s Rematch With Fernando Mendoza

Carson Beck will not play in Thursday night’s preseason matchup between the Arizona Cardinals and Las Vegas Raiders, NFL Network’s Ian Rapoport reported Thursday afternoon. The rookie quarterback is being held out due to a rib injury sustained in last Thursday’s Hall of Fame Game against the Carolina Panthers, a setback that scraps one of the most anticipated undercards of NFL preseason Week 1: Beck’s rematch with Raiders rookie Fernando Mendoza, his former national championship opponent.

Beck, Arizona’s third-round pick out of Miami, had turned heads with his preseason debut just a week ago, completing 15 of 19 passes for 188 yards and a touchdown while playing the entire first half against Carolina. According to Rapoport, Beck practiced through soreness all week and the injury is not considered serious, but the Cardinals chose to hold him out Thursday against Las Vegas as a precaution rather than risk further contact in a live game setting.

How Beck’s Rib Injury Happened

The injury traces back to a second-quarter hit Beck absorbed during the Hall of Fame Game, when he was brought down by a Panthers pass rusher after releasing a throw. Reports indicate Beck was able to finish that game and later took part in practice reps and 11-on-11 drills throughout the week without obvious limitation. The absence of live tackling in practice made it difficult for the Cardinals’ medical staff to fully clear him for game action, and the team ultimately erred on the side of caution rather than push a rookie through a physical, contact-heavy exhibition.

With Beck sidelined, veteran Jacoby Brissett — Arizona’s presumptive Week 1 starter — will take the reins Thursday, with Gardner Minshew and Kedon Slovis expected to divide the remaining snaps behind him. It’s a notable subplot for a Cardinals quarterback room that entered camp without Kyler Murray, leaving Brissett as the clear No. 1 and Beck as the developmental piece the front office is easing along one outing at a time. Assuming no setback, Beck’s next chance to play comes August 22 against the Dallas Cowboys, Arizona’s lone home preseason game.

Mendoza Still Gets the Spotlight in Las Vegas

The absence doesn’t dim the marquee value of Thursday’s game for the Raiders, who are moving forward with plans to get significant run for Fernando Mendoza, the No. 1 overall pick out of Indiana. Head coach Klint Kubiak has said Kirk Cousins will start, but Mendoza is expected to see extended work as the first half progresses — potentially even mixing in with Las Vegas’ top offensive line, depending on how long Cousins stays in the game. For a franchise that bet everything on Mendoza after his run to last season’s national title game, Thursday marks his first taste of live NFL competition, rib injury on the other sideline notwithstanding.

It’s a strange twist of scheduling: Mendoza and Beck met on the biggest stage college football offers just months ago, with Mendoza’s Indiana squad edging Beck’s Miami team for the championship. The NFL setting them on a collision course again in Week 1 of the preseason only for one side of that story to go quiet is the kind of subplot that will follow both rookies into the regular season.

What the Betting Market Is Saying

The odds for Cardinals-Raiders had already priced in a Beck-less version of this game once his questionable rib status became clear during the week, with Las Vegas installed as a modest favorite. Market pricing on the moneyline has the Raiders around the -170 to -190 range with Arizona sitting near +140, while the spread has settled with Las Vegas favored by roughly 3.5 points. The total has hovered in the low 40s, a number that reflects preseason expectations more than any specific quarterback matchup, since backups and rookies on both rosters typically play a heavier share of snaps than starters in Week 1 exhibitions.

For bettors who were tracking Beck’s per-half or per-drive production props coming off his strong Hall of Fame Game showing, those markets shift entirely to Brissett, Minshew and Slovis Thursday — none of whom carry the same rookie-hype betting interest Beck briefly generated. On the Raiders’ side, Mendoza’s extended workload keeps his season-long and rookie-of-the-year futures squarely in play regardless of what happens across the field tonight; a strong showing behind Las Vegas’ starting line would only reinforce the belief that his snap share grows quickly as the preseason progresses toward Cousins eventually giving way. With Beck out of the equation, all eyes — and most of the betting attention — shift to how much the Raiders let their No. 1 pick operate in his long-awaited NFL debut.